Public adoption with crypto is multi-pronged. In some places, it's actually just useful as a smart phone currency. That invention alone garners adoption in those areas. In the US, it wont because that is not enough since very few of us are libertarians or volunteerists. In the US, what will drive crypto, it has to be the next social app enterprise.
EOS is going to permit such an app to exist, presently, it cannot exist. With EOS, the average sort of college drop out should be able to code up something like Facebook 2.0 without an issue. The key with any sort of app like this is marketing & delivery, as much as it is whether the code operates or not.
Steemit falls into this category as well and doesn't run on EOS, but the issue with Steemit is that the devs are not running Steemit like a corporation bent on taking over and becoming the biggest ever. It requires more drive to get there, and probably requires we not operate upon decentralized consensus which the STEEM block-chain uses. Dan made a great point in his recent video, it's far easier to implement changes before the blockchain is operational than after it is operational.
Meaning, those projects not yet operational have the advantage going forward, down the road. They can simply innovate, where currently operating projects are going to be left in the world of blockchain 1.0 and blockchain 2.0. EOS is really the first 3.0 blockchain situation then.
It is one of these EOS apps which will have the shot at becoming the next Google / Microsoft / Apple / Facebook... very likely, it will be a traditional corporate structure as well, because a traditional corporate structure implements management to succeed at becoming big.... where as a decentralized group of libertarians / volunteerists and anarcho capitalists, are not financially incentived to behave that way.
Yet the decentralized, open source model produces the best and most reliable software. So with EOS, we get the best of both worlds, open source development with traditional corporate drive to innovate.
It is one of these use cases which will penetrate the US. If that use case runs a currency, both EOS and their token will have a high market cap.
What sort of app this will be, I really have no idea, though. A rehash of facebook with financial tech seems too easy to me. Very likely, it will be a trendier social media network to meet the younger generations. Maybe someone will truly invent something brand new, though... this has to be considered too.